Home / 143,454.96-197,975.16-79,794

Finding the Fourth Proportional to 143,454.96, 197,975.16 and 79,794

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Solution

The fourth proportional to 143,454.96, 197,975.16 and 79,794 is: 110,119.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,454.96 : 197,975.16 = 79,794 : x
  2. Step 2: Convert to fraction form
    143,454.96/197,975.16 = 79,794/x
  3. Step 3: Cross multiply
    143,454.96x = 197,975.16 × 79,794
  4. Step 4: Simplify right side
    143,454.96x = 15,797,229,917.04
  5. Step 5: Solve for x
    x = 15,797,229,917.04/143,454.96
  6. Step 6: Final answer
    x = 110,119.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.